The Shure KSE1200 is a sound-isolating electrostatic earphone amplifier system designed to deliver clear and precise audio reproduction for music enthusiasts and audiophiles in treated listening rooms or on the go. Its 3.5mm line input accepts analog signal from most mobile devices, laptops, and computers. The system includes an amplifier in a sturdy aluminum housing, electrostatic earphones, and a variety of accessories.

The amplifier's internal rechargeable Li-ion battery provides up to 12 hours of use while the amplifier delivers a constant 200 VDC bias for the supplied earphones. A -10 dB pad and adjustable volume control enable simple, effective management of levels. The single-driver electrostatic earphones are positioned securely over the ears via formable wire. Personalize the fit using the included eartip fit kit for a tight seal and up to 37 dB of noise isolation. The custom-designed earphone cable isolates each conductor to minimize extraneous noise and interference.